# Pressure (Grade 10)

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## Pressure

1.

P=F/A is the equation used to determine fluid pressure. If pressure remains constant and area increases what will happen to the force?

- Force will increase
- Force will decrease
- Force will remain constant
- Force is not a factor

2.

What is air pressure?

- force exerted on us by wind
- force exerted on us by air molecules
- force exerted on us by clouds
- force exerted on us by gravity

3.

Where is air pressure the least?

- at sea level
- in a car
- in the middle of a mountain
- on the top of a mountain

4.

Fluid pressure is always directed

- up.
- down.
- sideways.
- in all directions.

5.

Boyle's law states that as the pressure of a gas increases, its

- volume increases.
- temperatures increases.
- volume decreases.
- temperature decreases.

6.

Whose principle states the pressure exerted by a moving stream of fluid is less than the pressure of the surrounding fluid?

- Bernoulli
- Pascal
- Archimedes

7.

A gas is compressed at constant temperature from a volume of 540 ml to 320 ml. If the initial pressure was 475 mmHg, what is the final pressure in mmHg?

8.

What is a pressure of 1.20 atmospheres as expressed in millimeters of mercury (mmHg)?

9.

The xenon gas inside the bulb of a car headlight has a pressure of 2.00 ATM at a temperature of 300 K. If the temperature of the gas rises to 1200 K when the headlights are switched on, what will be the new pressure inside the bulb?

10.

A gas has a volume of 350 cc at 740 mmHg. How many cubic centimeters will the gas occupy at a pressure of 900 mmHG if the temperature remains constant?

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